The anisotropic nature of the dark energy for Bianchi type-VI 0 space time is discussed. The exact solution of the Einstein field equations under the assumption on the anisotropy of the fluid are obtained for exponential and power-law volumetric expansions. The isotropy of the fluid, space and expansion are examined.
Abstract:In this paper we have studied the KantowskiSachs cosmological model with the quark and strange quark matter in the f (R) theory of gravity. The general solutions of the eld equations are obtained by assuming the physical condition shear scalar σ is proportional to scalar expansion θ, which leads to the relation B = A n between metric coe cients B and A. The physical and geometrical aspects of the model are also discussed.
We have studied the Bianchi type-V cosmological models with binary mixture of perfect fluid and dark energy in five dimensions. The perfect fluid is obeying the equation of state p = γρ with γ ∈ [0, 1]. The dark energy is considered to be either the quintessence or the Chaplygin gas. The exact solutions of the Einstein's field equations are obtained in quadrature form.
In this paper,Kaluza-Klein space-time with quark and strange quark matter in gravity has been considered. The general solutions of the field equations of Kaluza-Klein space-time have been obtained under the assumption of constant deceleration parameter. The physical and geometrical aspects of the model are also discussed in details.
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